When there is a disagreement between the audit team and management, and if the disagreement concerns a significant risk, the issue should be escalated to the audit committee. The audit committee has the authority to review and resolve such disputes. Escalating the issue ensures that the concern is addressed at the highest governance level, maintaining the integrity and effectiveness of the internal audit function.
Reference:
The Institute of Internal Auditors (IIA) Standards
Internal Audit Governance and Escalation Procedures